So since I'm now going to have a higher alcohol content than I should, should I now dry hop with more hops? Will that extra alcohol diminish my hop flavor? I have time to get more hops if needed. Its only been in the fermenter since Sunday morning. All I have to dry hop with right now is the 2oz of Centennials that the recipe called for.
The dry hops will not balance the alcohol; you need bitterness(boil hops) for that. There is this "hop bittering extract" liquid that can add bitterness post fermentation, I think, but I've no direct experience. That said, 100+ IBU should be enough for almost anything. Just make certain your carbonation is right, and the bitterness will come out on the tongue like it should.